def repeat(interval, func):
def loop():
while not Event().wait(interval):
func()
Thread(target=loop).start()
# uses https://raw.githubusercontent.com/tomstokes/python-spi/master/spi.py
from spi import SPI
spi = SPI('/dev/spidev1.0')
spi.mode = SPI.MODE_0
spi.bits_per_word = 8
spi.speed = 10 * 1000000
IODIRA = 0x00
IOCON = 0x0a
GPIOA = 0x12
# write to MCP23S17 register(s), GPIOA by default
def mcp23s17(address, values, register=GPIOA):
global spi
opcode = 0x40 | (address << 1)
spi.write([opcode, register] + values)
# configure up to 5 MCP23S17
for address in range(5):
import serial
import time
import argparse
from spi import SPI
# get port name from arguments
#parser = argparse.ArgumentParser()
#parser.add_argument('--port_name', type=str, default='/dev/ttyS1', help='string of port name ex/ /dev/ttyS1')
#args = parser.parse_args()
# spi setup
spi = SPI("/dev/spidev1.0")
spi.mode = SPI.MODE_0
spi.bits_per_word = 8
spi.speed = 500000
#received = spi.transfer([0x11, 0x22, 0xFF])
#spi.write([0x12, 0x34, 0xAB, 0xCD])
def sendHandler():
while 1:
time.sleep(1)
try:
spi.write([0x12, 0x34, 0xAB, 0xCD])
print("Sent to spi bus.")
except Exception as e:
print("Error writing to spi bus: {}".format(str(e)))
try:
